package com.newx.common.core.utils;

import lombok.AccessLevel;
import lombok.NoArgsConstructor;
import org.apache.commons.lang3.time.DateFormatUtils;

import java.lang.management.ManagementFactory;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.time.*;
import java.time.format.DateTimeFormatter;
import java.time.temporal.TemporalAdjusters;
import java.util.*;
import java.util.stream.Collectors;

/**
 * 时间工具类
 *
 * @author ruoyi
 */
@NoArgsConstructor(access = AccessLevel.PRIVATE)
public class DateUtils extends org.apache.commons.lang3.time.DateUtils {

    public static final String YYYY = "yyyy";

    public static final String YYYY_MM = "yyyy-MM";

    public static final String YYYY_MM_DD = "yyyy-MM-dd";

    public static final String YYYYMMDDHHMMSS = "yyyyMMddHHmmss";

    public static final String YYYY_MM_DD_HH_MM_SS = "yyyy-MM-dd HH:mm:ss";

    private static final String[] PARSE_PATTERNS = {
        "yyyy-MM-dd", "yyyy-MM-dd HH:mm:ss", "yyyy-MM-dd HH:mm", "yyyy-MM",
        "yyyy/MM/dd", "yyyy/MM/dd HH:mm:ss", "yyyy/MM/dd HH:mm", "yyyy/MM",
        "yyyy.MM.dd", "yyyy.MM.dd HH:mm:ss", "yyyy.MM.dd HH:mm", "yyyy.MM"};

    /**
     * 获取当前Date型日期
     *
     * @return Date() 当前日期
     */
    public static Date getNowDate() {
        return new Date();
    }

    /**
     * 获取当前日期, 默认格式为yyyy-MM-dd
     *
     * @return String
     */
    public static String getDate() {
        return dateTimeNow(YYYY_MM_DD);
    }

    public static String getTime() {
        return dateTimeNow(YYYY_MM_DD_HH_MM_SS);
    }

    public static String dateTimeNow() {
        return dateTimeNow(YYYYMMDDHHMMSS);
    }

    public static String dateTimeNow(final String format) {
        return parseDateToStr(format, new Date());
    }

    public static String dateTime(final Date date) {
        return parseDateToStr(YYYY_MM_DD, date);
    }

    public static String parseDateToStr(final String format, final Date date) {
        return new SimpleDateFormat(format).format(date);
    }

    public static Date dateTime(final String format, final String ts) {
        try {
            return new SimpleDateFormat(format).parse(ts);
        } catch (ParseException e) {
            throw new RuntimeException(e);
        }
    }

    /**
     * 日期路径 即年/月/日 如2018/08/08
     */
    public static String datePath() {
        Date now = new Date();
        return DateFormatUtils.format(now, "yyyy/MM/dd");
    }

    /**
     * 日期路径 即年/月/日 如20180808
     */
    public static String dateTime() {
        Date now = new Date();
        return DateFormatUtils.format(now, "yyyyMMdd");
    }

    /**
     * 日期型字符串转化为日期 格式
     */
    public static Date parseDate(Object str) {
        if (str == null) {
            return null;
        }
        try {
            return parseDate(str.toString(), PARSE_PATTERNS);
        } catch (ParseException e) {
            return null;
        }
    }

    /**
     * 获取服务器启动时间
     */
    public static Date getServerStartDate() {
        long time = ManagementFactory.getRuntimeMXBean().getStartTime();
        return new Date(time);
    }

    /**
     * 计算相差天数
     */
    public static int differentDaysByMillisecond(Date date1, Date date2) {
        return Math.abs((int) ((date2.getTime() - date1.getTime()) / (1000 * 3600 * 24)));
    }

    /**
     * 计算两个时间差
     */
    public static String getDatePoor(Date endDate, Date nowDate) {
        long nd = 1000 * 24 * 60 * 60;
        long nh = 1000 * 60 * 60;
        long nm = 1000 * 60;
        // long ns = 1000;
        // 获得两个时间的毫秒时间差异
        long diff = endDate.getTime() - nowDate.getTime();
        // 计算差多少天
        long day = diff / nd;
        // 计算差多少小时
        long hour = diff % nd / nh;
        // 计算差多少分钟
        long min = diff % nd % nh / nm;
        // 计算差多少秒//输出结果
        // long sec = diff % nd % nh % nm / ns;
        return day + "天" + hour + "小时" + min + "分钟";
    }

    /**
     * 增加 LocalDateTime ==> Date
     */
    public static Date toDate(LocalDateTime temporalAccessor) {
        ZonedDateTime zdt = temporalAccessor.atZone(ZoneId.systemDefault());
        return Date.from(zdt.toInstant());
    }

    /**
     * 增加 LocalDate ==> Date
     */
    public static Date toDate(LocalDate temporalAccessor) {
        LocalDateTime localDateTime = LocalDateTime.of(temporalAccessor, LocalTime.of(0, 0, 0));
        ZonedDateTime zdt = localDateTime.atZone(ZoneId.systemDefault());
        return Date.from(zdt.toInstant());
    }
    /**
     * 相加天数
     * @param datetime 时间
     * @param day   天数
     * @return
     */
    public static Date dateFormatDay(Date datetime, Integer day) {
        Calendar cl = Calendar.getInstance();
        cl.setTime(datetime);
        cl.add(Calendar.DATE, +day);
        datetime = cl.getTime();
        return datetime;
    }

    public static Map<String, Object> getWeek(Date date) {

        String[] weekDays = {"周日", "周一", "周二", "周三", "周四", "周五", "周六"};
        //创建日历类
        Calendar calendar = Calendar.getInstance();
        //获取当月月份
        int month = calendar.get(Calendar.MONTH) + 1;
        //设置当前月份
        calendar.set(0, month, 0);
        //获取当月每个月有多少天
        int monthday = calendar.get(Calendar.DAY_OF_MONTH);
        //设置当前时间
        calendar.setTime(date);
        //今天是几号
        int today = calendar.get(Calendar.DATE);
        //今天是周几
        String weekday = weekDays[calendar.get(Calendar.DAY_OF_WEEK)-1];
        Map<String,Object> map=new HashMap<>();
        map.put("week",weekday);
        map.put("day",today);
        return map;
    }




    /**
     * 周期时间戳
     * @param cycleType
     * @return
     */
    public static long getCycleEndTimestamp(Integer cycleType) {
        LocalDateTime endDateTime;
        LocalDate today = LocalDate.now();

        switch (cycleType) {
            case 1: // 周
                endDateTime = today.with(TemporalAdjusters.nextOrSame(DayOfWeek.SUNDAY))
                    .atTime(LocalTime.MAX);
                break;
            case 2: // 月
                endDateTime = today.with(TemporalAdjusters.lastDayOfMonth())
                    .atTime(LocalTime.MAX);
                break;
            case 3: // 季
                Month endMonth = today.getMonth().firstMonthOfQuarter().plus(2);
                endDateTime = today.withMonth(endMonth.getValue())
                    .with(TemporalAdjusters.lastDayOfMonth())
                    .atTime(LocalTime.MAX);
                break;
            default:
                throw new IllegalArgumentException("Invalid cycle type: " + cycleType);
        }

        return endDateTime.atZone(ZoneId.systemDefault()).toInstant().toEpochMilli();
    }

    /**
     * 将时间戳转为字符串日期
     * @param beginCreateTime
     * @return
     */
    public static String convertLongToString(Long beginCreateTime) {
        // 转换为字符串日期
        return Instant.ofEpochMilli(beginCreateTime)
            .atZone(ZoneId.of("Asia/Shanghai")) // 使用系统默认时区
            .format(DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss"));
    }

}
